Inspired by the masterpiece of concrete music "Symphony for one man" Pierre Henry (1950), the film tells the story of a common man leaving the interior of Brazil to try life in São Paulo. The city, in its perpetual process of construction and deconstruction view from the microcosm of a construction site, its workers and a profusion of machines in full swing. The metaphysical revolt of this character is the revolt against his condition and against everything that humiliates him.

In the periphery of São Paulo, the pregnant single mother Cleuza works as maid in the apartment of a middle-class family. Each of her sons has a different unknown father: the oldest, Dênis, has a baby son that lives with his mother and he works as motorcycle courier.